GPT-5 Mini
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GPT-5 Mini vs GPT OSS 120B
Compare GPT-5 Mini and GPT OSS 120B, both from OpenAI, in 102 community votes, gpt oss 120b wins 56% of head-to-head duels, tested across 46 shared challenges. Updated April 2026.
Which is better, GPT-5 Mini or GPT OSS 120B?
GPT OSS 120B is the better choice overall, winning 56% of 102 blind community votes on Rival. GPT-5 Mini costs $0.25/M input tokens vs $0.18/M for GPT OSS 120B. Compare their real outputs side by side below.
Key Differences Between GPT-5 Mini and GPT OSS 120B
GPT-5 Mini is made by openai while GPT OSS 120B is from openai. On pricing, GPT-5 Mini costs $0.25/M input tokens vs $0.18/M for GPT OSS 120B. In community voting, In 102 community votes, GPT OSS 120B wins 56% of head-to-head duels.
In 102 community votes, GPT OSS 120B wins 56% of head-to-head duels. GPT-5 Mini leads in Image Generation, while GPT OSS 120B leads in Web Design, Reasoning, Analysis. Based on blind community voting from the Rival open dataset of 102+ human preference judgments for this pair.
Web Design: GPT OSS 120B wins 81% of votes
Reasoning: GPT OSS 120B wins 63% of votes
Image Generation: GPT-5 Mini wins 100% of votes
Conversation: GPT-5 Mini and GPT OSS 120B are tied
Analysis: GPT OSS 120B wins 75% of votes
Our Verdict
GPT OSS 120BWinner
GPT-5 MiniRunner-up
GPT OSS 120B has the edge overall. In 102 blind votes, GPT OSS 120B wins 56% of the time.
Pick GPT-5 Mini for Image Generation. Pick GPT OSS 120B for Web Design, Analysis, Reasoning.
Slight edge
Writing DNA
Style Comparison
Similarity
98%
GPT OSS 120B uses 743.4x more bold
GPT-5 Mini
GPT OSS 120B
62%Vocabulary52%
21wSentence Length19w
0.16Hedging0.28
0.0Bold7.4
3.4Lists1.8
0.00Emoji0.15
0.00Headings0.73
0.05Transitions0.17
Based on 15 + 21 text responses
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